If sin A-B=1/2 , cos A+B=1/2 ,Then Find The Value of A & B .
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sin A - B =1/2
multiply by sin inverse , we get
A - B = 30° .... (1)
cos A + B = 1/2
multiply by cos inverse , we get
A + B = 60° ......(2)
solve (1) and (2)
A - B = 30
A + B =60
___________
2A =90
A=45°
put value of A in (1) equation
45-B =30
B =15°
A=45° and B = 15°
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